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Condensed Balance Sheets (USD $)
Jun. 30, 2012
Dec. 31, 2011
Current assets:    
Cash and cash equivalents $ 612,394 $ 957,022
Accounts receivable, net 1,506,488 2,791,549
Inventories 1,765,654 1,461,052
Prepaid expenses and other current assets 160,254 218,862
Total current assets 4,044,790 5,428,485
Property and equipment:    
Machinery and office equipment 2,115,752 2,212,178
Computer equipment 1,375,805 1,324,696
Property and equipment, gross 3,491,557 3,536,874
Accumulated depreciation (3,066,606) (3,225,231)
Property and equipment, net 424,951 311,643
Intangible assets, net 120,000 150,000
Goodwill 4,427,000 4,427,000
Other assets 81,518 80,076
Total assets 9,098,259 10,397,204
Current liabilities:    
Accounts payable 3,683,852 3,266,764
Accrued expenses 94,554 94,554
Accrued payroll and related expenses 608,363 564,980
Bank line of credit 897,415 1,109,600
Deferred income on shipments to distributors 1,169,190 1,571,544
Short term portion of deferred service revenue 236,194 247,174
Short term portion of capital leases and deferred rent 16,972 17,731
Total current liabilities 6,706,540 6,872,347
Long term portion of deferred service revenue 190,770 167,476
Long term portion of capital leases and deferred rent 231,639 184,341
Deferred income taxes 63,425 47,455
Total liabilities 7,192,374 7,271,619
Stockholders’ equity:    
Common stock, $0.001 par value: Authorized shares - 10,000,000, Issued and outstanding – 4,861,063 shares at June 30, 2012 and 4,832,079 shares at December 31, 2011 4,861 4,832
Additional paid-in capital 60,732,297 60,324,852
Accumulated deficit (58,831,273) (57,204,099)
Total stockholders’ equity 1,905,885 3,125,585
Total liabilities and stockholders’ equity $ 9,098,259 $ 10,397,204